*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: #111;
  overflow: hidden;
}
.container{
  position: relative;
  width: 800px;
  height: 500px;
  background: #222;
}
.container .clip{
  position: absolute;
  top:0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: 0.5s;
}
.container .clip.clip1{
  background: url(img1.jpg);
  background-size: cover;
  clip-path: polygon(0 0, 55% 0, 20% 100%, 0% 100%);
}
.container .clip.clip2{
  background: url(img2.jpg);
  background-size: cover;
  clip-path: polygon(55% 0, 100% 0, 45% 100%, 20% 100%);
}
.container .clip.clip3{
  background: url(img3.jpg);
  background-size: cover;
  clip-path: polygon(100% 0, 100% 0, 100% 100%, 45% 100%);
}
.container:hover .clip{
  clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
}
.container .clip:hover{
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
}
.content{
  position: absolute;
  bottom: -100%;
  width: 70%;
  padding: 20px;
  background: #fff;
  transition: 0.5s;
}
.container .clip:hover .content{
  bottom: 0;
  opacity: 1;
}